A theoretical method was proposed to extend a bridge density functional approximation ( bdfa ) for the non-uniform hard sphere fluid to the non-uniform lennard-jones ( lj ) fluid 摘要為了將非勻一硬球流體的橋密度泛函近似擴(kuò)展到非勻一非硬球流體,提出了一個(gè)理論方案。
The conventional model construction method, rational functional approximation method, ca n't describe the nonlinear effect of the nonlinear unsteady aerodynamics . so the reduced order model based on volterra series for linear and nonlinear unsteady aerodynamics was investigated and applied to the model construction and active control law design of aeroelastic system 針對(duì)氣動(dòng)伺服彈性分析與設(shè)計(jì)中傳統(tǒng)的有理函數(shù)擬合法不能夠有效地描述非線性效應(yīng)的問題,本文研究了基于volterra級(jí)數(shù)的非定常氣動(dòng)力降階模型(rom)及其在氣動(dòng)彈性系統(tǒng)主動(dòng)控制律設(shè)計(jì)中的應(yīng)用。